Knife



FIG. 1 is a top plan view of a knife showing my new design;

FIG. 2 is a right side elevational view thereof;

FIG. 3 is a left side elevational view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is an end elevational view from the top of FIG. 1; and

FIG. 6 is an end elevational view from the bottom of FIG. 4. 

The ornamental design for a knife, as shown and described. 